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Practice No. System Questions and Answers

The sum of four consecutive counting numbers is 154. Find the smallest number?
The ages of Geeta, Meera and Tina are in the ratio of 6:4:7 respectively. If the sum of their ages is 34 years, what is Meera’s age?
A Student was asked to add 8 and subtract 5 from a number. By mistake, he added 5 and subtracted 8. If his answer is 11, what should be the correct answer?
If the numerator of a fraction is increased by 300% and the denominator is increase by 600%.The resultant fraction is 1/2. What was the original fraction?
Arvind's age after 19 years will be 67 years. Ravi is 4 years older than Arvind. The ratio of present ages of Samar and Ravi is 9:13. Find the age of Samar...
A waiter income consist of his salary and tips. During one week his tips were 4/5 of his salary. What portion of his income came from tips?
The sum of three consecutive odd natural numbers each divisible by 3 is 81. Which number is the largest number among the three numbers?
The ratio of Raj’s to Simran’s salary is 3: 5. If Simran’s salary is increased by 25%, her total salary becomes Rs. 54,000. What is the s...
How many Zeros can be formed by multiplying 10×20×30×40×…………….× 100
The difference between the value of the number increased by 20% and the value of the number decreased by 30% is 120. Find the number.
In a kilometre race, A beats B by 30 metres or 6 seconds. Find the time taken by A to finish the race?
The sum of four consecutive even numbers is 108. What is the sum of the squares of these numbers?
The value of a machine depreciates every year by 12%. What will be its value after 2 year if its value is Rs 19,650?
In a group of three numbers first is double of second and half of third. The average of three numbers is 56. Find the difference between the first number a...
If (3 - 4/(1+ 2/(3+ 1/(2+1/3))))th part of a journey takes 45 minutes, then to complete 4/5th of that journey, it will take:
Uttarakhand Government accomplished a Golden Triangular Project. Under this Project, the State Government Laid down 6 lane roads connecting the three citie...
Happy and Sad are running on a circular track of radius 245 metres. Happy can complete a round in 200 seconds and the speed of Sad is twice the speed of Ha...
The number 611611611611611611611 is
180 is divided into two parts in such a way that the fifth part of the first part and the fourth part of the second are in the ratio 4:5. Second part is ho...
Divisor is 7 times of Quotient and 3 times of its remainder. If the remainder is 7. Find the dividend?
Aakriti’s present age is 5 times of Poonam’s age. The sum of the present ages of Aakriti, Poonam and Aakriti’s father is 86 yrs. Aakriti’s father�...
In a class, 1/3 of the students are girls and rest are boys. If 3/5 of the girls and 1/5 of the boys are absent, what part of the total number of students ...
A girl found the answer for the question “subtract the sum 1/4 and 1/8 from unity and express the answer in decimals” as 1.5. The percentage of error i...
In a class, 2/5 of the students are girls and rest are boys. If 4/9 of the girls and 1/3 of the boys are absent, what part of the total number of stu...
In a tennis tournament, each player played one game with all the other players. How many players participated in the tournament if they played 300 games in...
Arvind's age after 19 years will be 67 years. Ravi is 4 years older than Arvind. The ratio of present ages of Samar and Ravi is 9:13. Find the age of Samar...
A waiter income consist of his salary and tips. During one week his tips were 4/5 of his salary. What portion of his income came from tips?
Rs 720 is to be divided among P, Q and R so that P gets 3/5 of Q’s share and R gets 1/3 of P’s share. Share of R is:
A farmer wants to divide Rs 2,81,800 between his sons , who are 17 and 19 years old respectively, in such a way that the sum divided at the rate of 12% per...
The difference between the value of the number increased by 20% and the value of the number decreased by 30% is 120. Find the number.
If the numerator of a fraction is increased by 300% and the denominator is increase by 600%.The resultant fraction is 1/2. What was the original fraction?
The sum of three consecutive odd natural numbers each divisible by 3 is 81. Which number is the largest number among the three numbers?
22 44 176 1078 8448...
16 4 2 1.5 1 1.875...
15 15 60 540 8650...
4096 2048 514 64 4...
4 14 44 124 404...
There are two types of animals in a pet shop. Some are puppies and some are kittens. Each kitten takes 8 biscuits and each puppy takes 11 biscuits. If 500 ...
If a = 12, b = 23, c = 34, ............... z = 2627 . How many zeros are formed after multiply a × b × c × ........... × z?...
A park has an average of 140 visitors on Sundays and 80 on other day. The average number of visitors in a month of 30 days starting with Sunday is

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